Sewing-machine motor



(No Model.) 2 SheetsSheet 1.

' J. A. ARTHUR.

SEWING MACHINE MOTOR. No. 283,742. Patented Aug. 28, 1883.

u. PETERS. Phakwlilhognplmr, Washington. a. a

(No Model.) 2 Sheets- S11eet 2.

'J..A. ARTHUR. SEWING MACHINE MOTOR. No. 283,742. Patented Aug. 28, 1883llllllllllllllTilll ilj MFSZSES- I 57/557 57;

W Q W N. PETERS. PhutrrLilhngraphcr. Washington 11.6.

UNITED STATES PATENT 'OEFrcE.

JOSEPH A. ARTHUR, OF CATLETTSBURG, KENTUCKY, ASSIGNOR OF ONE- THIRD TOEMRI ROBINSON, OF KANAVVHA STATION, VEST VIRGINIA.

SEWING-MACHINE MOTOR.

SPECIFICATION .forming part of Letters Patent No. 283,742, dated August28, 1883.

Application filed June 28, 1883.

T on whom it may concern:

Be it known that I, JosErH A. ARTHUR, a citizen of the United States,residing at Gatlettsburg, in the county of Boyd and State of Kentucky,have invented certain new and useful Improvements in Sewing-MachineMotors, of which the following is a specification, reference being hadtherein to the accompanying drawings.

My invention relates to sewing-machine motors; and it consists incertain details of construction as hereinafter pointed out and claimed.

The object of my invention is to produce a I 5 spring-motor forsewing-machines which shall be detachable from the machine and capableof adjustment to various positions on the machine or table, said motoralso to be capable of being under the control of the sewing-ma 2o chineoperator, and also to have a fan attachment, which fan may serve as agovernor, and to a considerable extent regulate the speed of themachine.

In the drawings which form part of this 2 5 specification, and in whichlike letters designate like parts, Figure 1 is a side elevation of mymotor, parts being shown in dotted lines. Fig. 2 is a reverse side viewof the same, the frame being broken away. Figs. 3 and 4show the socketor clamping arrangement by which the motor may be attached to the table.Fig. 5 is a detail. Fig. 6 is a front view of fan, which serves also asa governor. Fig. 7 is a section of same, showing the gearing. Fig. 8

5 shows treadleandfriction-brake. Fig. 9shows spindle, to whichfan-leaves are attached. Fig. 10 shows one of the fan-leaves. Fig. 11 isthe collar which holds fan-shaft in its drivingshaft. Fig. 12 shows asupport for a fan-driv- 4o ing shaft.

11 in the drawings are side bars, forming the frame of my motor device.These bars or straps are connected at thctop in suitable manner. Thedriving-spring 2 is attached to a crossbar, 3, and operates, when woundup, to

turn the shaft 4, after the manner of a clockspring. The revolution ofshaft 4, which carries ratchet 5, tends to drive gear 6 through themedium of pawl 7 which engages with said ratchet. Gear 6 drives pinion 8on shaft of gear 9, which engages with pinion 10 on (No model.)

shaft of main or drive wheel 11. Abelt from drive-wheel 11 serves todrive the pulley 12, which may be the driving-pulley of a sewingmachine, or may be belted to such pulley. 5 5 As the spring 2 will havemore power when first wound up than after it has run awhile, I find itnecessary to retard the motion of the machine somewhat. Thisretardation. I accomplish in either of the two ways about to bedescribed; or Imay use both ways. Pulley 12 has a bearingsurface, withwhich the friction brake 13 engages. This brake may be drawn down bypressure on treadle 15 by means of pitman-rod 14, so that the machineshall run as slowly as found desirable; or it may be en tirely stopped.

,18, is revolved by the belt 21 when the set screws are pressed down,and in this way the shaft 18 is driven when desirable. The shaft 7 5 18may be supported in other bearings when necessary, as by support 18*,Fig. 12. The shaft 18 is perforated at 21 for the passage of fan-shaftor supporting-stock 22, and is continued a short distance beyond saidperforation, forming abearing, 23, for sleeve 24, which carries abevel-pinion, 25. Said sleeve and pinion are held down by spring 26,which surrounds bearing 23, and is contained in in closing-cup 27; butthe sleeve and pinion may be slid along said bearing against the forceof said spring.

A bevel-pinion, 28, is splined or otherwise attached to the shaft 22,and engages with the bevel-gear 25. By this means, when bevelo gear 25and its sleeve are forced back against the force of the spring 26, so asto be out of engagement with bevel-gcar 28, the shaft 22 may be turnedpartly or wholly around; but when the spring is allowed to throw the two5 gears into engagement the parts are locked, so

that shaft 22 cannot turn in its bearings 21. Shaft 22 carries the fans29, which may be held to said shaft by screws 30, or in other suitablemanner. By the turning of shaft 22 in its bearings these fans may bepresented flatwise or edgewise to the air, or at any angle, so as to actas a governor to retard the motion of I the machine, as well as to servethe usual functions of a fan when found desirable to be so utilized. Acollar, 37 on shaft 22 will hold .it from slipping endwise through shaft18, the bevel-pinion serving as a stop 011 the other side, as shown inFig. 6.

Theside bars, 1, formingthe frame are passed into square socket 31,which has perforations 32 extending through it in both directions.

The clamp-bar 33, bent, as shown, to embrace the edge of thesewing-machine table, or a bar on the sewing-machine frame, has anextension, 34, squared and of such size as to fit inside the squaresocket 31 when bars 1 are in place. The clamp-bar 33 is provided withsetscrews 35, and the socket 31 has set-screw 36, as seen in Fig. 1,which may pass through either of the perforations 32 in the socket 31.Theframe 1 may thus be removed from the socketand clamp and againsecured in another direction, so as to be capable of attachment todifferent kinds of machines.

WVhat I claim is V 1. In a sewing-machine motor, the combination of theframe 1, the spring 2, attached to a crossbar thereof and operating topropel the shaft 4, as described, the intermediate gears and pinions,and the driving-wheel, all mounted in standards removable from theframe, and having clamping mechanism, substantially such as described,so as to be-adjustable to various machines or to different positions onthe same machine, substantially as described. a v

2. The combination, with the frame carrying a sewing-machine motor ofthe character described, of the extensions or arms 16, slotted at 17 andprovided with set-screws, the fanshaft and sleeves adjustable in saidbearings 0 by meansof the set-screws, and the fan and mechanism forretaining the vanes thereof in various positions, substantially asdescribed.

3. The combination, with a sewing-machine motor, of a fan which servesas governor to 5 said motor, the blades of the fan being adjustable, soas to present more or less surface to the air by means of engagingbevel-gears 011 the driving-shaft and fan-shaft, and suitable retainingmechanism for such gears, sub stantially as set forth.

4. The combination, withasewing-machine motor of the characterdescribed, of the fan driving shaft 18, perforated, as described, the

fan-shaft 22 and its fans, the bevel-pinions 25 l 28, arranged asdescribed, and a spring to hold the bevel-pinions in contact, but topermit them to be separated, so that shaft 22 may be partially rotatedin its. bearings, all substantially as described.

5. The combination, with a sewing machine motor of the characterdescribed, having frame 1 1, of the socket 31, clamp-bar 33, and squareextension 34, and the set-screws, when all the parts are arranged inmanner substantially as described, so that the motor may be turnedeither way on the table, as set forth.

In testimony whereof IaffiX my signaturein presence of two witnesses.

JOSEPH A. ARTHUR.

